TY  - CHAP
A1  - Borggräfe, Andreas
A1  - Dachwald, Bernd
T1  - Mission performance evaluation for solar sails using a refined SRP force model with variable optical coefficients
T2  - 2nd International Symposium on Solar Sailing
N2  - Solar sails provide ignificant advantages over other low-thrust propulsion systems because they produce thrust by the momentum exchange from solar radiation pressure (SRP) and thus do not consume any propellant.The force exerted on a very thin sail foil basically depends on the light incidence angle. Several analytical SRP force models that describe the SRP force acting on the sail have been established since the 1970s. All the widely used models use constant optical force coefficients of the reflecting sail material. In 2006,MENGALI et al. proposed a refined SRP force model that takes into account the dependancy of the force coefficients on the light incident angle,the sail’s distance from the sun (and thus the sail emperature) and the surface roughness of the sail material [1]. In this paper, the refined SRP force model is compared to the previous ones in order to identify the potential impact of the new model on the predicted capabilities of solar sails in performing low-cost interplanetary space missions. All force models have been implemented within InTrance, a global low-thrust trajectory optimization software utilizing evolutionary neurocontrol [2]. Two interplanetary rendezvous missions, to Mercury and the near-Earth asteroid 1996FG3, are investigated. Two solar sail performances in terms of characteristic acceleration are examined for both scenarios, 0.2 mm/s2 and 0.5 mm/s2, termed “low” and “medium” sail performance. In case of the refined SRP model, three different values of surface roughness are chosen, h = 0 nm, 10 nm and 25 nm. The results show that the refined SRP force model yields shorter transfer times than the standard model.
Y1  - 2010
N1  - 2nd International Symposium on Solar Sailing, ISSS 2010, 2010-07-20 - 2010-07-22. New York City College of Technology of the City University of New York, USA
SP  - 1
EP  - 6
ER  - 
TY  - CHAP
A1  - Bosse, Elke
A1  - Barnat, Miriam
ED  - Jenert, Tobias
ED  - Reinmann, Gabi
ED  - Schmohl, Tobias
T1  - Kombination quantitativer und qualitativer  Methoden zur Untersuchung der Studieneingangsphase
T2  - Hochschulbildungsforschung. Theoretische, methodologische und methodische Denkanstöße für die Hochschuldidaktik
Y1  - 2019
SN  - 978-3-658-20308-5
SP  - 169
EP  - 184
PB  - Springer VS
CY  - Wiesbaden
ER  - 
TY  - CHAP
A1  - Brandt, D.
A1  - Güsken, J.
A1  - Büchen, W.
A1  - Wahle, Michael
A1  - Huppatz, W.
A1  - Koewius, A.
A1  - Linn, W.
A1  - Sedlaceck, G.
T1  - Konstruieren mit Aluminium [Kapitel 4]
T2  - Aluminium-Taschenbuch / Hrsg.: Aluminium-Zentrale Düsseldorf. - Bd. 3: Weiterverarbeitung und Anwendung
Y1  - 1997
SN  - 3-87017-243-6
SP  - 359
EP  - 544
PB  - Aluminium-Verlag
CY  - Düsseldorf
ET  - 15. Auflage
ER  - 
TY  - BOOK
A1  - Braun, Carsten
T1  - Ein modulares Verfahren für die numerische aeroelastische Analyse von Luftfahrzeugen
N2  - Aachen, Techn. Hochschule, Diss., 2007
Y1  - 2007
ER  - 
TY  - CHAP
A1  - Braun, Carsten
A1  - Boucke, Alexander
A1  - Ballmann, Josef
T1  - Numerical study of the influence of dynamic pressure and deflected ailerons on the deformation of a high speed wing model
T2  - High performance computing in science and engineering '04. Transactions of the High Performance Computing Center Stuttgart (HLRS) 2004 /  Eds.: Egon Krause ...
Y1  - 2005
SN  - 3-540-22943-4
SP  - 225
EP  - 236
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Braun, Carsten
A1  - Boucke, Alexander
A1  - Ballmann, Josef
T1  - Numerical prediction of the wing deformation of a high speed transport aircraft type wind tunnel model by direct aeroelastic simulation
T2  - Conference proceedings : CEAS/AIAA/DGLR International Forum on Aeroelasticity and Structural Dynamics IFASD 2005 : München, June 28 - July 1, 2005. DGLR-Bericht. 2005,04
Y1  - 2005
SN  - 3-932182-43-X
PB  - DGLR
CY  - Bonn
ER  - 
TY  - CHAP
A1  - Braun, Carsten
A1  - Boucke, Alexander
A1  - Hanke, M.
A1  - Karavas, Alexandros
A1  - Ballmann, Josef
T1  - Prediction of the model deformation of a high speed transport aircraft type wing by direct aeroelastic simulation
T2  - High performance computing in science and engineering '03. Transactions of the High Performance Computing Center Stuttgart (HLRS) 2003 /  Eds.: Egon Krause ...
Y1  - 2003
SN  - 978-3-540-40850-5
SP  - 331
EP  - 342
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Breitschuh, S.
A1  - Graber, S.
A1  - Hagemann, Hans-Jürgen
A1  - Hemdt, A. vom
A1  - Schmitz, Günter
T1  - Telematiklabore mit LabVIEW in der Ingenieurausbildung
JF  - Virtuelle Instrumente in der Praxis : Messtechnik, Automatisierung ; Begleitband zum Kongress VIP 2003 / Rahman Jamal ; Hans Jaschinski (Hrsg.).
Y1  - 2003
SN  - 3-7785-2908-0
N1  - VIP <2003, München>
SP  - 458
EP  - 464
PB  - Hüthig
CY  - Heidelberg [u.a.]
ER  - 
TY  - CHAP
A1  - Britten, G.
A1  - Braun, Carsten
A1  - Hesse, M.
A1  - Ballmann, Josef
T1  - Computational aeroelasticity with reduced structural models
T2  - Flow modulation and fluid-structure interaction at airplane wings : research results of the Collaborative Research Center SFB 401 at RWTH Aachen, University of Technology, Aachen, Germany / Josef Ballmann (Ed.) Notes on numerical fluid mechanics and multidisciplinary design. Vol. 84
Y1  - 2003
SN  - 3-540-40209-8
SP  - 275
EP  - 299
PB  - Springer
CY  - Berlin
ER  - 
TY  - BOOK
A1  - Bullerschen, Klaus-Gerd
T1  - Theoretische Untersuchungen zur thermischen Belastung der Elektroden des Lichtbogenofens und deren Kühlung durch Heat Pipes
Y1  - 1987
N1  - Dissertation
PB  - Techn. Hochsch., Fak. für Bergbau, Hüttenwesen u. Geowiss.
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Bullerschen, Klaus-Gerd
T1  - Rechenmodelle zur Stromverdrängung in ein- und mehrphasigen elektrischen Leitungen komplexer Geometrie
JF  - Elektrowärme International, Edition B (Industrielle Elektrowärme). 48 (1990), H. 4
Y1  - 1990
SN  - 0340-3521
SP  - 199
EP  - 210
ER  - 
TY  - JOUR
A1  - Bullerschen, Klaus-Gerd
T1  - Hochtemperaturtechnik. Interne Arbeitssitzung des GVC-Fachausschusses 'Hochtemperaturtechnik'
JF  - Chemie Ingenieur Technik. 61 (1989), H. 6
Y1  - 1989
SN  - 0009-286X
SP  - 510
EP  - 512
ER  - 
TY  - JOUR
A1  - Bullerschen, Klaus-Gerd
A1  - Léonard, G.
T1  - Hochtemperaturtechnik
JF  - Chemie Ingenieur Technik. 62 (1990), H. 3
Y1  - 1990
SN  - 0009-286X
SP  - 252
EP  - 256
ER  - 
TY  - JOUR
A1  - Bullerschen, Klaus-Gerd
A1  - Voigt, H.
A1  - Friedrich, R.
T1  - Experimentelle und mathematische Untersuchungen zum Heißtransport von Stranggußbrammen
JF  - Stahl und Eisen. 110 (1990), H. 6
Y1  - 1990
SN  - 0378-7559
SP  - 97
EP  - 105
ER  - 
TY  - JOUR
A1  - Bullerschen, Klaus-Gerd
A1  - Wilhelmi, Herbert
T1  - Kühlung von Lichtbogenofenelektroden durch Wärmerohre
JF  - Stahl und Eisen. 110 (1990), H. 8
Y1  - 1990
SN  - 0378-7559
SP  - 91
EP  - 98
ER  - 
TY  - JOUR
A1  - Bullerschen, Klaus-Gerd
A1  - Wilhelmi, Herbert
T1  - Cooling of arc furnace electrodes with heat pipes
JF  - Chemical Engineering & Technology. 14 (1991), H. 1
Y1  - 1991
SN  - 0930-7516
SP  - 45
EP  - 53
ER  - 
TY  - JOUR
A1  - Bullerschen, Klaus-Gerd
A1  - Wilhelmi, Herbert
A1  - Wimmer, W.
T1  - Influence of non-uniform material properties and water cooling on current density and temperature profiles in arc furnace elektrodes
JF  - Steel Research. 56 (1985), H. 11
Y1  - 1985
SN  - 0177-4832
SP  - 559
EP  - 564
ER  - 
TY  - PAT
A1  - Burlage, Thomas
A1  - Hörauf, Martin
A1  - Klandt, Michael
A1  - Wahle, Michael
T1  - Schwingungsdämpfer : Offenlegungsschrift
T1  - Friction damper having an elastomer spring element : patent of invention
Y1  - 1998
N1  - Deutscher Titel der Europäischen Patentanmeldung: Reibungsdämpfer mit einem Elastomerfederelement
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt
CY  - München / Den Hague
ER  - 
TY  - CHAP
A1  - Busse, Daniel
A1  - Esch, Thomas
A1  - Muntaniol, Roman
T1  - Thermal management in E-carsharing vehicles - preconditioning concepts of passenger compartments
T2  - E-Mobility in Europe : trends and good practice
N2  - The issue of thermal management in electric vehicles includes the topics of drivetrain cooling and heating, interior temperature, vehicle body conditioning and safety. In addition to the need to ensure optimal thermal operating conditions of the drivetrain components (drive motor, battery and electrical components), thermal comfort must be provided for the passengers. Thermal comfort is defined as the feeling which expresses the satisfaction of the passengers with the ambient conditions in the compartment. The influencing factors on thermal comfort are the temperature and humidity as well as the speed of the indoor air and the clothing and the activity of the passengers, in addition to the thermal radiation and the temperatures of the interior surfaces. The generation and the maintenance of free visibility (ice- and moisture-free windows) count just as important as on-demand heating and cooling of the entire vehicle. A Carsharing climate concept of the innovative ec2go vehicle stipulates and allows for only seating areas used by passengers to be thermally conditioned in a close-to-body manner. To enable this, a particular feature has been added to the preconditioning of the Carsharing electric vehicle during the electric charging phase at the parking station.
KW  - Carsharing
KW  - Thermal management
KW  - Thermal comfort
KW  - Electrical vehicle
KW  - Passenger compartment
Y1  - 2015
SN  - 978-3-319-13193-1
U6  - https://doi.org/10.1007/978-3-319-13194-8_18
SP  - 327
EP  - 343
PB  - Springer
CY  - Cham [u.a.]
ER  - 
TY  - JOUR
A1  - Bécret, P.
A1  - Grossen, J.
A1  - Trilla, J.
A1  - Robinson, A.
A1  - Bosschaerts, W.
A1  - Funke, Harald
A1  - Hendrick, P.
T1  - Testing and numerical study of a 10 kW hydrogen micro combustor
JF  - International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications <7, 2007, Freiburg, Breisgau>  ; PowerMEMS ; 7
Y1  - 2007
SP  - 367
EP  - 370
ER  -